What it is actually doing is initially loading the first Video Wall in my list of video walls in my organization for which the tag restricted person indeed does not have access to.  If they click on the only video wall they do have access to, they are able to view it fine.  This also explains why it did work for the user that has access to all cameras...because they did have access to the cameras in the first video wall cameras.  ... View more

Actually seems to be some kind of bug.  Video wall when clicked on does allow access. ... View more

Camera Admins not necessary.  Camera Roles set the same permissions.  I have one user though that has access to All Cameras (no camera admin), and Video Wall works for him.  The other user has access to cameras tagged with a certain tag (which also are the only cameras in the Video Wall they are accessing) and the Video Wall cameras display the Video Access Denied.  ... View more